1 #ifndef __SOUND_MPU401_H
2 #define __SOUND_MPU401_H
3
4 /*
5 * Header file for MPU-401 and compatible cards
6 * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
7 *
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 */
24
25 #include "rawmidi.h"
26 #include <linux/interrupt.h>
27
28 #define MPU401_HW_MPU401 1 /* native MPU401 */
29 #define MPU401_HW_SB 2 /* SoundBlaster MPU-401 UART */
30 #define MPU401_HW_ES1688 3 /* AudioDrive ES1688 MPU-401 UART */
31 #define MPU401_HW_OPL3SA2 4 /* Yamaha OPL3-SA2 */
32 #define MPU401_HW_SONICVIBES 5 /* S3 SonicVibes */
33 #define MPU401_HW_CS4232 6 /* CS4232 */
34 #define MPU401_HW_ES18XX 7 /* AudioDrive ES18XX MPU-401 UART */
35 #define MPU401_HW_FM801 8 /* ForteMedia FM801 */
36 #define MPU401_HW_TRID4DWAVE 9 /* Trident 4DWave */
37 #define MPU401_HW_AZT2320 10 /* Aztech AZT2320 */
38 #define MPU401_HW_ALS100 11 /* Avance Logic ALS100 */
39 #define MPU401_HW_ICE1712 12 /* Envy24 */
40 #define MPU401_HW_VIA686A 13 /* VIA 82C686A */
41 #define MPU401_HW_YMFPCI 14 /* YMF DS-XG PCI */
42 #define MPU401_HW_CMIPCI 15 /* CMIPCI MPU-401 UART */
43 #define MPU401_HW_ALS4000 16 /* Avance Logic ALS4000 */
44 #define MPU401_HW_INTEL8X0 17 /* Intel8x0 driver */
45 #define MPU401_HW_PC98II 18 /* Roland PC98II */
46 #define MPU401_HW_AUREAL 19 /* Aureal Vortex */
47
48 #define MPU401_MODE_BIT_INPUT 0
49 #define MPU401_MODE_BIT_OUTPUT 1
50 #define MPU401_MODE_BIT_INPUT_TRIGGER 2
51 #define MPU401_MODE_BIT_OUTPUT_TRIGGER 3
52
53 #define MPU401_MODE_INPUT (1<<MPU401_MODE_BIT_INPUT)
54 #define MPU401_MODE_OUTPUT (1<<MPU401_MODE_BIT_OUTPUT)
55 #define MPU401_MODE_INPUT_TRIGGER (1<<MPU401_MODE_BIT_INPUT_TRIGGER)
56 #define MPU401_MODE_OUTPUT_TRIGGER (1<<MPU401_MODE_BIT_OUTPUT_TRIGGER)
57
58 #define MPU401_MODE_INPUT_TIMER (1<<0)
59 #define MPU401_MODE_OUTPUT_TIMER (1<<1)
60
61 typedef struct _snd_mpu401 mpu401_t;
62
63 struct _snd_mpu401 {
64 snd_rawmidi_t *rmidi;
65
66 unsigned short hardware; /* MPU401_HW_XXXX */
67 unsigned long port; /* base port of MPU-401 chip */
68 unsigned long cport; /* port + 1 (usually) */
69 struct resource *res; /* port resource */
70 int irq; /* IRQ number of MPU-401 chip (-1 = poll) */
71 int irq_flags;
72
73 unsigned long mode; /* MPU401_MODE_XXXX */
74 int timer_invoked;
75
76 int (*open_input) (mpu401_t * mpu);
77 void (*close_input) (mpu401_t * mpu);
78 int (*open_output) (mpu401_t * mpu);
79 void (*close_output) (mpu401_t * mpu);
80 void *private_data;
81
82 snd_rawmidi_substream_t *substream_input;
83 snd_rawmidi_substream_t *substream_output;
84
85 spinlock_t input_lock;
86 spinlock_t output_lock;
87 spinlock_t timer_lock;
88
89 atomic_t rx_loop;
90 atomic_t tx_loop;
91
92 struct timer_list timer;
93
94 void (*write) (mpu401_t * mpu, unsigned char data, unsigned long addr);
95 unsigned char (*read) (mpu401_t * mpu, unsigned long addr);
96 };
97
98 /* I/O ports */
99
100 #define MPU401C(mpu) (mpu)->cport
101 #define MPU401D(mpu) (mpu)->port
102
103 /*
104
105 */
106
107 irqreturn_t snd_mpu401_uart_interrupt(int irq, void *dev_id, struct pt_regs *regs);
108
109 int snd_mpu401_uart_new(snd_card_t * card,
110 int device,
111 unsigned short hardware,
112 unsigned long port,
113 int integrated,
114 int irq,
115 int irq_flags,
116 snd_rawmidi_t ** rrawmidi);
117
118 #endif /* __SOUND_MPU401_H */
119
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